2 in custody in South Shore stabbing death

Chicago police were seeking murder charges against a 16-year-old boy suspected in a fatal stabbing in the city's South Shore neighborhood.

Police had a second suspect in custody and were seeking a third believed responsible for the afternoon Thursday afternoon attack in the 2000 block of East 71st Street.

Citing preliminary reports, Chicago police said three young men were quarreling with Andreaus Clark, 24, in front of a currency exchange on 71st Street at about 4:05 p.m. before the dispute spilled into the business. During the quarrel, the 16-year-old is believed to have chased Clark into the currency exchange and stabbing him, before he collapsed in the business, police said.

At some point in the attack, the teen was himself stabbed in the buttocks and taken to the University of Chicago Comer Children's Hospital, where he was treated and released into police custody.

Clark, of the 7900 block of South Oglesby Avenue, was taken to Northwestern Memorial Hospital, where he was pronounced dead according to the Cook County medical examiner's office.

The second suspect of an unknown age was taken to Calumet Area police headquarters, where he was being questioned by investigators, police said. The third suspect remained at large. Police recovered the knife they believe was used in the attack.

Police didn't say what the quarrel was about. Police were seeking first-degree murder charges against the teen suspect, a police source said.